I wanted to get some information and context with how I should approach the proposed extension of my term at work. I am currently covering a 14 month maternity leave and there is talk that the leave will be extended to 18 months, meaning my term will be extended by another 4 months. When I had first signed the contact, I signed on for a specific salary and for a 14 month term. Now having been in the role now for 9 months, I know that this position can pay a higher salary. My performance has been exemplary and I have grown their books close to 20% (which is pretty hard to do in my industry).
My question is, given that this is a term position, am I able to ask for a raise if my contact was to be extended? Also being that the extension is only by 4 months, is asking for a raise justified? I don't have to stay with this company, I can choose to terminate my contact anytime I'd like. However, I do like the organization and the leadership here has been fantastic. In the end, I do have to look out for me and seek the best options for my success.
Any help or advice are greatly appreciated.
Edit- I live in Canada.